0a01299cae838e8920ce78f846e94890d3a08619316aacfe34f9deb0b364d69c

Analysis

max time kernel
146s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21-08-2024 09:38

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General

Target

$PLUGINSDIR/fzltxxnfffs.dll
Size

194KB
MD5

c1ee8fc3cb583c07338524ac89801344
SHA1

041872fd3d00b10c7983f641be1e579bb709e6b7
SHA256

2b1efdc452245df048688e006a8d7c103e5ec369cab07125060161752ea6d8b6
SHA512

bd59b363d5c6e01a5f92e17f3c8c86eda4793a7ca53fa062aa80632fdb2130df527991ceb3ac6f73edd09e22a8e71968d0b7ad6e50fb7a7f2f9ed417f82f0190
SSDEEP

6144:ZUtJEr7mQNzZ/vDXqxnfNahvFp1cck4X3rm6v:ZnCYFD6TG9pjni6v

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
2348	4948	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

rundll32.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	Process	procid_target
PID 1904 wrote to memory of 4948	1904	rundll32.exe	84
PID 1904 wrote to memory of 4948	1904	rundll32.exe	84
PID 1904 wrote to memory of 4948	1904	rundll32.exe	84
PID 4948 wrote to memory of 3312	4948	rundll32.exe	85
PID 4948 wrote to memory of 3312	4948	rundll32.exe	85
PID 4948 wrote to memory of 3312	4948	rundll32.exe	85
PID 4948 wrote to memory of 3312	4948	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\fzltxxnfffs.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1904
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\fzltxxnfffs.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4948
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\fzltxxnfffs.dll,#1
    3⤵
    PID:3312
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 728
    3⤵
    - Program crash
    PID:2348

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4948 -ip 4948
1⤵
PID:4868

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4948-1-0x00000000000D0000-0x0000000000110000-memory.dmp

Filesize
256KB

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